Combine all of the marinade ingredients in a bowl. Slice the steak into strips and add to the bowl ensuring that it is all coated. Cover and pop in the fridge while you prep the vegetables.
¼ cup tamari sauce, ¼ cup rice vinegar, 2 tbsp oyster sauce, 1 tbsp tomato puree, 3 tablespoons brown sugar, 1 pinch chilli flakes, 2 garlic cloves, 1 inch fresh ginger, 1 pinch black pepper, 9 ounces steak
Cut all of the vegetables into even strips (julienne) ready for stir frying.
1 white onion, 1 red pepper, 1 yellow pepper, 1 carrot, 1 small head of broccoli
Heat a tablespoon of oil in the wok (or skillet) on the highest heat. Let the oil get super hot.
Add the onions to the wok for a minute or two to soften, keep moving them around in the wok as they cook. Add in the beef along with all of the marinade , and cook for a couple of minutes, again, keep stirring.
Once the beef has coloured, stir in the vegetables and cook for 3 minutes until they have softened, but still crunchy
Garnish with spring onions and some chilli slices. Serve immediately with rice or noodles
sliced green onion